Home / 39,449.94-54,440.01-21,545.16

Finding the Fourth Proportional to 39,449.94, 54,440.01 and 21,545.16

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Solution

The fourth proportional to 39,449.94, 54,440.01 and 21,545.16 is: 29,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.94 : 54,440.01 = 21,545.16 : x
  2. Step 2: Convert to fraction form
    39,449.94/54,440.01 = 21,545.16/x
  3. Step 3: Cross multiply
    39,449.94x = 54,440.01 × 21,545.16
  4. Step 4: Simplify right side
    39,449.94x = 1,172,918,725.85
  5. Step 5: Solve for x
    x = 1,172,918,725.85/39,449.94
  6. Step 6: Final answer
    x = 29,731.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.